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Investigators said the thefts have occurred in Lee's Summit,Excelsior Springs and Leavenworth, Kan. A Walmart store in Lee's Summit has been hit twice.

Lee's Summit PD

"The M.O. on this crime is that he actually pulls up right to the front of the building, jumps out of his car, goes and steals one of the canisters and then carries it out or pushes it out in a shopping cart," said Officer Beth Glover of the Lee's Summit Police Department.

She said he then gets back into his vehicle, a dark-colored Saturn with no license plates, and leaves.

In all of the surveillance images, the man is wearing an Olathe East Hawks sweatshirt. Police said they believe he is in his 40s.

Anyone who recognizes the man is asked to call the Lee's Summit TIPS Hotline at 816-969-1752.